Finding the Fourth Proportional to 12,983,308.96, 19,476,735.60 and 5,408,502.88

Step by Step Solution

1. Step 1: Write the proportion equation
   12,983,308.96 : 19,476,735.60 = 5,408,502.88 : x
2. Step 2: Convert to fraction form
   12,983,308.96/19,476,735.60 = 5,408,502.88/x
3. Step 3: Cross multiply
   12,983,308.96x = 19,476,735.60 × 5,408,502.88
4. Step 4: Simplify right side
   12,983,308.96x = 105,339,980,585,598.53
5. Step 5: Solve for x
   x = 105,339,980,585,598.53/12,983,308.96
6. Step 6: Final answer
   x = 8,113,492.55